Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
With the transition into August, Erwin notes an average high-temperature of a still moderately hot 80.1°F (26.7°C), closely resembling July. Erwin throughout August, experiences an average nighttime temperature of 59°F (15°C).Humidity
In August, the average relative humidity is 69%.Rainfall
In Erwin, in August, during 12.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Erwin, during the entire year, the rain falls for 112.3 days and collects up to 18.78" (477mm) of precipitation.Snowfall
June through September are months without snowfall in Erwin.Daylight
In Erwin, South Dakota, the average length of the day in August is 13h and 59min.On the first day of the month, sunrise is at 6:17 am and sunset at 8:54 pm. On the last day of August, in Erwin, South Dakota, sunrise is at 6:52 am and sunset at 8:07 pm CDT.
Sunshine
In August, the average sunshine in Erwin is 10.3h.UV index
The average daily maximum UV index in August in Erwin is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Erwin in August?
What is the average humidity in August in Erwin?
How many days does it rain in August in Erwin?
When it does not snow in Erwin?
How many hours of daylight does Erwin have in August?
When is the sunrise / sunset in August in Erwin?
How long on average sun shines in August in Erwin?
What is the UV index reading in August in Erwin?
Average temperature in August
Erwin, SD
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in August: 59°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in August
Erwin, SD
- Average pressure in August: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Erwin, SD
- Average wind speed in August: 8.6mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in August
Erwin, SD
- Average humidity in August: 69%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in August
Erwin, SD
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in August
Erwin, SD
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in August
Erwin, SD
- Average snowfall in August: 0"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Erwin, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Erwin, SD
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Erwin, SD
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Erwin, SD
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Erwin, SD
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Erwin, SD
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Erwin, South Dakota, USA
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